Souenbu (双燕舞 Souenbu? lit. "Twin Swallow Dance"), is a special technique that Zero learns after defeating Wind Crowrang in Mega Man X7. By pressing the special attack button with the V Hanger equipped, Zero throws a blade of energy that homes in on the nearest enemy. This attack is Vanishing Gungaroo's weakness, as well as Sigma's first form from the same game.